As budgets tighten it's even more tempting to grab the dollar meal at your local fast food joint, but those cheap eats are packed with fat, sodium, cholesterol, and processed meat—so read this before you do.

The non-profit Cancer Project ranks the five most unhealthy items on these so-called "value menus." At the top of the list? Jack in the Box's $1 junior bacon cheeseburger, which has 23 grams of fat (8 grams of saturated fat), 55 milligrams of cholesterol, and 860 milligrams of sodium and just one gram of fiber.

In third-worst place was the one-dollar Burger King breakfast sausage biscuit, with 27 grams of fat, including 15 grams of saturated fat and over 1,000 milligrams of sodium.

Fourth worst went to the one-dollar McDonald's McDouble, which contains 19 grams of fat and 65 milligrams of cholesterol.

Last, and least-worst, was the Wendy's junior bacon cheeseburger, for $1.53, with 310 calories and 16 grams of fat.

If you're looking for some equally fast but more healthy items, check out our previously posted five fast food restaurants to feel good about. Unsurprisingly, none of the restaurants listed above appear there, but chances are their offerings aren't as inexpensive, either. Photo by VirtualErn.